... by load startup, torsional vibration isolation, buffering,stepless speed regulating, quick and stable clutching, etc. This series ... typeSupporting methodThe YOTJ560-1000 series valve-regulated variable speed hydraulic coupling with new Bernard electric actuator couldadjust ... adjustment and exact control of the controlvalve, so as to realize the stepless speed regulating of hydraulic coupling. YOTJ560 ...